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A 180 m long train crosses a man standing on the platform in 6 seconds. What is the speed of the train?1. 90 km/hr2. 108 km/hr3. 120 km/hr4. None of the above |
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Answer» Correct Answer - Option 2 : 108 km/hr Given: Length of train = 180 m Time taken to cross platform = 6 seconds Formula required: Speed = Distance/Time To convert m/s into km/h multiply by 18/5 Calculations: Speed = 180/6 ⇒ 30 m/sec Convert m/sec in to km/hr 30 × 18/5 ⇒ 108 km/hr ∴ The speed of train is 108 km/hr |
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